| Acronym | Meaning |
 | AURA | Association Of Universities For Research In Astronomy |
| OSTP | Office Of Science And Technology Policy |
| ASA | Astronomical Society Of The Atlantic |
| LH | Liquid Hydrogen |
| AU | Astronomical Unit |
| NSSDC | National Space Science Data Center |
| SWAN | Solar Wind Anisotropy Experiment |
| USMP | United States Microgravity Payload |
| MISR | Multiangle Imaging Spectro-Radiometer |
| ETM | Enhanced Thematic Mapper |
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